I bought 2 packs of the cryptocoryne wendtii about 2 weeks ago for my low tech 10 gallon. They are looking good so far. I actually went and bought another pack of them tonight. The ones in back like someone else said looked like they were in the greatest health also. Here is a pic of the first ones i got about 2 weeks old now.

And here is the plant pack I bought tonight.

And in the tank.

Notice how much better the 2 week old ones look compared to the ratty looking new ones thats what they looked like at first. I use just gravel and laterite with a pinch of dry ferts. I think these are great plants compared to the ones in tubes imo.